If you're going to spend that much money on a nice heli you likely won't want to risk it due to a gyro or an iffy radio. Tony's suggestions for the gyro are very good, and imho a solid radio is indispensable to get a heli really dialed in. Plus, if you look around, you can find the exact settings for popular radios that others use for their 450s and it will save you a lot of trouble.